Part of Field Development Planning and Production Performance Monitoring based on NPV and EUR.
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| \mbox{NPV} = - \mbox{I}_0 + \sum_{i=1}^n \frac{\mbox{FCF}_i}{(1+r)^i} |
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| \mbox{PI} = \frac{1}{ \mbox{I}_0 } \cdot \sum_{i=1}^n \frac{\mbox{FCF}_i}{(1+r)^i} |
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| \mbox{FCF}_i = \left( \mbox{NETBACK}_i - \mbox{COST_i} \right) \cdot \left( 1 - \mbox{TAX}_{\mbox{income}} \right) |
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| \mbox{NETBACK}_i = \mbox{REV}_i \cdot \left( 1- \mbox{TAX}_{\mbox{sls}} \right) |
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| \mbox{REV}_i = \mbox{q}_i \cdot \mbox{PRICE/q} |
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| \mbox{COST}_i = \mbox{COGS}_i + \mbox{OPEX}_i |
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\mbox{COGS}_i = \mbox{q}_{L,i}^{\uparrow} \cdot \mbox{COST/qL} + \mbox{q}_{O,i}^{\uparrow} \cdot \mbox{COST/qO}+ \mbox{q}_{G,i}^{\uparrow} \cdot \mbox{COST/qG} + \mbox{q}_{W,i}^{\uparrow} \cdot \mbox{COST/qW} + \mbox{q}_{WI,i}^{\downarrow} \cdot \mbox{COST/qWI} | COGS = mF↑ · CF↑ + mF↓ · CF↓ + qO↑ · CO↑ + qG↑ · CG↑ + qW↑ · CW↑ + qG↓ · CG↓ + qW↓ · CW↓ |
| Priceincome = Taxmining · Pricemarket |
where
FCFi | Free Cash Flow for i-th year | | surface oil volumetric production |
Salesi |
| qG↑ | surface gas volumetric production |
COGSi |
| qW↑ | surface water volumetric production |
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| qG↓ | surface gas volumetric injection |
OPEXi |
| qW↓ | surface water volumetric injection |
CAPEXi |
| CO↑ | production oil processing/transportation cost |
Interesti |
| CG↑ | production gas processing/transportation cost |
IncomeTaxRate |
| CW↑ | productio nwater processing/transportation cost |
Taxmining |
| CG↓ | injection gas processing/transportation cost |
Pricemarket |
| CW↓ | injection water processing/transportation cost |
Priceincome |
| mF↑ | fluid production lift cost |
q1 |
| mF↓ | fluid injection lift cost |
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| CF↑ | η↑ · g · H · CE |
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| CF |